/Engine/Plugins/Runtime/MassGameplay/Source/MassSpawner/Public/MassSpawnerSubsystem.h
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UMassSpawnerSubsystem : public [UWorldSubsystem](API\Runtime\Engine\Subsystems\UWorldSubsystem)
TSharedPtr<FMa...
EntityManager
TArray<TObject...
SpawnDataInitializers
FMassEntityTemp...
TemplateRegistryInstance